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    <title>Document</title>
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    <script>
        let name = 'username';

        let obj = {
            username:'atguigu',
            age:10
        }

        console.log(obj.username);
        console.log(obj['username']);
        console.log(obj[name]);

        let obj2 = {
            [name]:'尚硅谷'
        }
        console.log(obj2);

    </script>
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